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target="_blank">手持式林格曼黑度計(jì)</a></strong>，是通過(guò)林格曼煙氣黑度圖法來(lái)測(cè)定固定污染源排放煙氣黑度的設(shè)備，是隨著科學(xué)技術(shù)水平的提高，應(yīng)運(yùn)而生的煙氣林格曼黑度分析系統(tǒng)。隨著科學(xué)技術(shù)水平的提供，應(yīng)運(yùn)而生了煙氣林格曼黑度分析系統(tǒng)，改變了以往的人工、效率低下的林格曼黑度分析模式，采用了*自動(dòng)的林格曼黑度自動(dòng)分析系統(tǒng)，分析出的結(jié)果準(zhǔn)確，并把數(shù)據(jù)自動(dòng)入庫(kù)，不需要人工的參與，大大的節(jié)省了環(huán)保部門有限的人力和物力。</div><div>　　使用手持式林格曼黑度計(jì)測(cè)試時(shí)要注意以下幾點(diǎn)：</div><div>　　1、從皮袋中取出儀器，脫氣目鏡蓋和物鏡蓋，然后將儀器對(duì)準(zhǔn)被監(jiān)測(cè)的煙囪口，調(diào)節(jié)望遠(yuǎn)鏡，使煙囪口冒出的黑煙清晰，即可進(jìn)行比較測(cè)定。測(cè)定時(shí)應(yīng)注意以下幾點(diǎn)：</div><div>　　2、觀測(cè)時(shí)的照明光（即太陽(yáng)的直射光或來(lái)自天空的照射光）應(yīng)為側(cè)光，與視線近似地成直角應(yīng)避免正面光及背光</div><div>　　3、在陰?kù)F情況下，由于天空背景較暗，讀數(shù)時(shí)應(yīng)記取稍偏低的級(jí)別</div><div>　　4、煙囪出口背景上不要有山、樹(shù)和建筑物之類暗黑的障礙物</div><div>　　5、觀察時(shí)應(yīng)代表鍋爐正常運(yùn)轉(zhuǎn)狀態(tài)，要求鍋爐負(fù)荷保持在額定負(fù)荷的80%以上，此時(shí)不得向煤中加水，不得過(guò)量鼓風(fēng)衡釋</div><div>　　6、觀測(cè)不能一次為準(zhǔn)，每次間隔可掌握在0.1-1分鐘之間，依次記錄數(shù)據(jù)（每次觀測(cè)瞬時(shí)黑度），如煙塵黑度處于二級(jí)之間，可估計(jì)到1/2級(jí)黑度值，最后將測(cè)得的值取平均值，即為該煙塵的黑度。</div></p> 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